Lidar observations of interacting wind turbine wakes in an onshore wind farm

摘要

Detailed observations of the interactions of wakes of multiple turbines in large onshore wind farms are required for validation of detailed flow simulation models for assessing and forecasting wind power production and loads on individual turbines. The CWEX-13 field campaign was designed to explore the propagation of individual turbine wakes as well as the interaction of multiple wakes in a range of atmospheric stability conditions. CWEX-13 took place between late June and early September 2013 in a 150 MW wind farm in central Iowa, the same wind farm studied in previous CWEX campaigns. The region is characterized by flat topography and enjoys strong diurnal cycles of atmospheric stability as well as regular occurrences of nocturnal low-level jets. Multiple remote sensing systems characterized winds, temperature, and moisture profiles throughout the wind farm, complementing the array of surface-based meteorological stations.